2015-16 (Sophomore): Stretching the floor in his second season, Ilias played in all 28 games for the Tigers while starting a pair of contests. He would finish the season averaging 4.9 points and 2.4 rebounds while shooting 45.4% from the floor and 41.8% from behind the arc. His 28 made three-pointers on just 67 attempts would rank third on the team while his 41.8% precision ranked second. Ilias would notch double-figures in scoring five times on the year including scoring a career-best 12 points in back-to-back contests against San Diego and BYU to finish the 2015 calendar year. He would tack on a third 12-point game in Pacific's final home game of the season as he went 5-for-7 from the floor against San Francisco.

2014-15 (Freshman): Ilias saw 11 games for the Tigers during the 2014-15 season. Ilias has career-highs with seven points and three rebounds at Gonzaga on January 24. He scored four points against Cal State East Bay on December 3. He has played in four games for the Tigers, scoring his first points of the season with a basket against Pacific Union on November 20. He also grabbed a pair of offensive rebounds in that game.

High School: Theodorou is a 6-7 forward from Athens, Greece. He spent one year at a prep school, St. John's Northwestern Military Academy in Delafield, Wisconsin. He played in 2013-14 for head coach Brian Richert, helping the Lancers to 15 wins in his only season. He averaged 10.1 points and 5.2 rebounds per game. He attended high school in his hometown of Athens, playing with the Panathinaikos Athletic Club. He has played in the Greece national program, playing in tournaments in Italy and France, along with the U16 European Tournament in the Czech Republic.

Personal: Ilias is the son of Dionysia Dania and Georgios Theodorou. He has one sibling, Antigoni. He is majoring in business.